JPH04219479A - Closed compressor - Google Patents

Abstract

PURPOSE:To reduce vibration and noise occurring when a closed compressor used for a refrigerator or the like is actuated, operated and stopped in its operation. CONSTITUTION:A closed container 12 is provided with a compression element 13 and at least three or more of both a compression coil spring 15 and a tension coil spring 18 which elastically support the compressing element 13 and an electric element 14. As an example, the compression coil spring 15 is interposed between a supporting part 16 and a supporting member 17 fastened to the closed container 12 on a compression part side 21, and the tension coil spring 18 is interposed between a locking part 19 and a locking member 20 fastened to the closed container 12 on an anticompression part side 22.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hermetic compressor used in refrigerators and the like.

0002

[Background Art] In recent years, due to the growing concern about noise in the living environment, hermetic compressors (hereinafter referred to as compressors) are required to be small, low noise, and low vibration. Improvements such as those listed in Japanese Utility Model Application Publication No. 64-3086 have also been made.

An example of a conventional compressor will be described below with reference to the drawings. Figure 5 shows Utility Model No. 64-3086.
FIG. 2 is a sectional view of the compressor described in the publication. FIG. 4 is an internal support model diagram of a conventional compressor. In FIG. 5, 1 is an airtight container, 2 is an electric element, and 3 is a compression element, and the electric element 2 and the compression element 3 are fitted into a support 4 and a support 4 attached to the airtight container 1 by a method such as welding. The compression element 3 is elastically supported by the support protrusion 6 of the compression element 3 via the compression coil retainer 5 .

The operation of the compressor constructed as described above will be explained below. First, electric element 2 and compression element 3
is elastically supported from the same direction via the compression coil spring 5 and support protrusion 6 fitted into the support 4 at any time, such as when the compressor is running, stopped, or transported, and is generated by the electric element 2 and the compression element 3. reduce the transmission of vibration and noise.

[0005] Also, at the start of operation (when the compressor starts)
It also controls the movement when the compressor is stopped (the moment the compressor stops) and works to reduce noise and vibration.

[0006]

However, in the above configuration, as shown in the model diagram of FIG. 4, the coil springs that elastically support the electric element and the compression element have the same vibration form and vibration mode. and large lateral vibrations.

In addition, vibrations are easily transmitted to the sealed container through the coil springs supported from the same direction, which increases the vibration of the compressor and the noise caused by this, and when starting the operation,
The problem is that the movement that occurs when stopping cannot be suppressed, causing the squeaking sound of the coil spring called stopping noise, and the noise caused by contact with the closed container caused by excessive movement of the compression element or electric element. Ta.

[0008] In view of the above problems, the present invention provides a compressor that has low vibration and noise during operation, when starting and stopping operation, and which does not generate noise due to contact between the electric element or the compression element and the closed container when the operation is stopped. It is something to do.

[0009]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the compressor of the present invention includes a compression element, an electric element, a compression coil spring for elastically supporting the compression element, and a tension spring. It has a coil spring.

[0010] Furthermore, the support part of the compression element, the support fixed to the sealed container, and the compression coil spring are arranged on the compression part side, and the locking part, the fastening part fixed to the sealed container, and the tension coil spring are arranged on the side opposite to the compression part. It is something that intervenes.

Furthermore, the present invention has a structure in which the compression coil spring and the tension coil spring are arranged in reverse.

0012

[Operation] According to the present invention, the compression element and the electric element are elastically supported by the compression coil spring and the tension coil spring supporting them in different support directions.
They do not have the same vibration mode and have different vibration forms.

[0013] Therefore, large vibrations in the vertical and lateral directions are less likely to occur, and the vibrations are easily suppressed.Since the compression coil spring and the tension coil spring each transmit vibrations to the sealed container in different modes, the vibrations increase due to the overlap of the same modes. As a result, when driving,
This makes it possible to provide a compressor with less vibration and noise when starting and stopping operation.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A compressor according to an embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 are longitudinal sectional views of a compressor according to an embodiment of the present invention, and FIG. 3 is a model diagram showing the configuration of the present invention. In FIG. 1, 11 is a compressor, 12 is a closed container, 1
3 is a compression element, and 14 is an electric element, which is fixed to the compression element 13 located vertically above. A compression coil spring 15 is interposed between the support portion 16 of the compression element 13 and a support 17 fixed to the closed container 12, and elastically supports the compression element 13. Reference numeral 18 denotes a tension coil spring that connects the locking portion 1 of the compression element 13.
9 and a locking tool 20 fixed to the closed container 12 to elastically support the compression element 13. 21 is the compression section side of the compressor 11, and 22 is the opposite compression section side.

Regarding the compressor configured as above,
The operation will be explained below using FIGS. 1 and 3. In FIG. 1, when the compressor 11 starts operating, the compression element 1
3 and the electric element 14 cause vibration. This vibration is suppressed by the compression coil spring 15 interposed between the support portion 16 of the compression element and the support tool 17 and the tension coil spring 18 interposed between the locking portion 19 and the locking tool 20. As shown in the model diagram shown in FIG. 3, the compression element 13 is supported on one side by a compression coil spring 15 and on the other side by a tension coil spring 18.
Since the compression coil spring 15 and the tension coil spring 1
It can be kept small by shaking it due to the interaction of 8.

Furthermore, since the compression coil spring 15 and the tension coil spring 18 have different fulcrums, swing forms, and vibration modes, the vibrations transmitted to the hermetic container 12 through the coil springs do not have the same mode, and the vibrations transmitted to the hermetic container 12 through the coil springs are different. It becomes difficult to shake.

Next, a compressor according to another embodiment of the present invention will be described with reference to FIG. In FIG. 2, parts that are the same as those in FIG.

23 is a compression coil spring, and the side opposite to the compression part 22
The support part 16 of the compression element 13 and the closed container 12
It is interposed between supports 17 fixed to the compression element 13 and elastically supports the compression element 13. A tension coil spring 26 is located on the compression part side 21 and is interposed between a locking part 28 provided on the protrusion 27 of the compression element 13 and a locking tool 29 fixed to the closed container 12. Elastic support.

Regarding the compressor configured as above,
The operation will be explained below using FIGS. 2 and 3. In FIG. 2, when the compressor 11 starts operating, the compression element 1
3 and the electric element 14 cause vibration. These vibrations are caused by the tension coil spring 26 attached to the compression part side 21 and the compression coil spring 23 attached to the anti-compression part side 22.
suppressed and absorbed by

As shown in the model diagram shown in FIG. 3, the compression element 13 is elastically supported on one side by a compression coil spring 15 and on the other side by a tension coil spring 18. Unlike the compressor model, the vibration is not promoted by having the same vibration form and similar mode, and in the embodiment shown in FIG. 2, the vibration can be suppressed to a small level due to the interaction between the compression coil spring 23 and the tension coil spring 26. .

Furthermore, the protrusion 27 is connected to the tension coil spring 2.
In addition to making it easy to install 6, it also makes it possible to store airtight container 1 during transportation.
2 also serves to prevent excessive extension of the tension coil spring 26 during transportation.

As described above, according to this embodiment, a compression element, an electric element, a compression coil spring for elastically supporting the compression element, and a tension coil spring are provided in the airtight container, and the compression element is disposed on the compression part side. A support member and a compression coil spring fixed to the supporting part and the closed container are arranged, and a locking part and a locking member fixed to the closed container and a tension coil spring are interposed on the side opposite to the compression part, or a compression coil spring and a tension coil spring are arranged. By having a configuration in which the arrangement of the compression element and the electric element are reversed, the compression element and the electric element are elastically supported by the compression coil spring and the tension coil spring that support them in different support directions. Therefore, since they do not have the same vibration mode and have different vibration forms, large vibrations in the vertical and lateral directions are less likely to occur, and the vibrations are easily suppressed, and the compression coil spring and the tension coil spring each operate in different modes in an airtight container. Since the vibration is transmitted, the vibration will not be increased due to the overlap of the same mode, and as a result, during operation,
This makes it possible to provide a compressor with less vibration and noise when starting and stopping operation.

[0024]

As described above, the present invention has a compression element, an electric element, a compression coil spring for elastically supporting the compression element, and a tension coil spring in a closed container.

[0025] Furthermore, the support part of the compression element, the support fixed to the sealed container, and the compression coil spring are arranged on the side of the compression part, and the locking part, the fastening part fixed to the sealed container, and the tension coil spring are arranged on the side opposite to the compression part. or by providing a configuration in which the compression coil spring and the tension coil spring are arranged in reverse, the compression element and the electric element are elastically supported by the compression coil spring and the tension coil spring supporting them in different support directions. Since they do not have the same vibration mode and have different vibration forms, large vibrations in the vertical and lateral directions are less likely to occur, and the vibrations are easily suppressed. Compression coil springs and tension coil springs each vibrate the sealed container in different modes. As a result, the vibration is not increased due to the overlap of the same mode, and as a result, it is possible to provide a compressor with low vibration and noise during operation, start of operation, and stoppage of operation at a low cost without adding extra parts. Become.

[Brief explanation of the drawing]

[Fig. 1] A vertical cross-sectional view of a compressor in an embodiment of the present invention.

[
FIG. 2: A vertical cross-sectional view of a compressor in another embodiment of the present invention

[
Figure 3: Model diagram of the internal elastic support of the compressor according to the present invention

[
Figure 4: Model diagram of internal elastic support of a conventional compressor

[Figure 5]
Longitudinal cross-sectional view of a conventional compressor

[Explanation of symbols]

12 Sealed container 13 Compression element 14 Electric element 15 Compression coil spring 16 Support part 17 Support equipment 18 Tensile coil spring 19 Locking part 20 Locking tool 21 Compression part side 22 Anti-compression side

Claims (3)

[Claims] 1. A hermetic compressor comprising a compression element, an electric element, a compression coil spring for elastically supporting the compression element, and a tension coil spring in a hermetic container. 2. A compression coil spring is interposed between a support part on the compression part side of the compression element and a support fixed to the closed container, and is fixed to a locking part on the opposite compression part side of the compression element and the closed container. 2. The hermetic compressor according to claim 1, wherein a tension coil spring is interposed between the locking devices. 3. A tension coil spring is interposed between the locking part on the compression part side of the compression element and the locking tool fixed to the closed container,
2. The hermetic compressor according to claim 1, wherein a compression coil spring is interposed between the support part on the side opposite to the compression part of the compression element and the support fixed to the hermetic container.